The Firefox browser will be making its way to Android and iOS devices starting today.
Firefox 39 will come preinstalled on Android devices, and will also be included with all the iOS devices.
Mozilla is also planning to include the Firefox beta on a number of mobile devices.
This is not surprising given Firefox has a long history of being on the mobile side of things, which is why we expect Firefox 39 to make its way onto many devices, especially those with low battery life.
The Firefox beta is available for testing now and will continue to be available for the rest of the year.